Also, while the major groups are pretty much the same across different resources, once you get to the secondary and tertiary types you'll see a difference in how things are classified.
@Matt1234567 Except I'm an English major and a biochemical Engineer may have a harder time getting an A than me -- whereas we both have an equal (somewhat) metric if taking the same assessment.
@mcmlaw36 The problem sets are great but they only help so much. The major progress happens with the actual PTs themselves. Again, the PT/BR cycle takes precedence over everything else. The problem sets are ancillary to this end.